// Copyright (C) 2019-2020 Zilliz. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software distributed under the License
// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
// or implied. See the License for the specific language governing permissions and limitations under the License.

package typeutil

import "github.com/milvus-io/milvus/internal/proto/commonpb"

// CompareIndexParams compares indexParam1 with indexParam2. When all keys of indexParam1 exist in indexParam2,
// and the corresponding value are the same as in indexParam2, return true
// Otherwise return false
func CompareIndexParams(indexParam1, indexParam2 []*commonpb.KeyValuePair) bool {
	if indexParam1 == nil && indexParam2 == nil {
		return true
	}
	if indexParam1 == nil || indexParam2 == nil {
		return false
	}
	if len(indexParam1) != len(indexParam2) {
		return false
	}
	paramMap1 := make(map[string]string)
	paramMap2 := make(map[string]string)

	for _, kv := range indexParam1 {
		paramMap1[kv.Key] = kv.Value
	}
	for _, kv := range indexParam2 {
		paramMap2[kv.Key] = kv.Value
	}

	for k, v := range paramMap1 {
		if _, ok := paramMap2[k]; !ok || v != paramMap2[k] {
			return false
		}
	}

	return true
}
